Finder scope Skywatcher SW-7105 9x50 90° angle for telescopes

The Finder scope Skywatcher SW-7105 9x50 90° angle for telescopes is an optical accessory designed to help locate celestial objects prior to observation. It offers 9× magnification and a 50 mm objective lens, combined with a 90° angled eyepiece to provide a more comfortable, upright viewing position. The finder scope is intended to mount on standard telescope finder rails or brackets and is suitable for improving aiming accuracy and speeding up target acquisition for both planetary and deep-sky observing.

Advantages

The angled 90° view reduces neck strain and makes it easier to use the finder when the main telescope is pointed near the zenith. With 9× magnification and a 50 mm objective, the finder delivers a balance between a wide field of view and sufficient image brightness for star-hopping and initial alignment. Its optical design improves contrast and target visibility, while the rugged housing is intended to withstand regular field use.

Suitable for

• Visual locating of stars, planets and bright deep-sky objects
• Initial alignment and star-hopping before main telescope observations
• Use on equatorial and alt-azimuth mounts when a comfortable viewing angle is required
• Portable observing sessions and backyard amateur astronomy

Key specifications

• Magnification: 9×
• Objective diameter: 50 mm
• Eyepiece orientation: 90° angled view
• Optical type: finder scope with magnified view
• Typical mounting: standard telescope finder bracket or rail

How to use

Mount the finder scope securely on the telescope's finder bracket or rail and align its reticle with the main telescope. Use rough alignment during daytime on a distant terrestrial object, then perform fine alignment at night by centering a bright star in the main telescope and adjusting the finder until the star is centered in the finder's view. Use the 9× magnification to star-hop from known stars to target objects; the 50 mm objective helps maintain sufficient image brightness for easy identification.

Usage recommendations

For best results, complete a two-step alignment: rough daytime alignment followed by precise nighttime alignment on a bright star. When observing near the zenith, use the 90° angled eyepiece to maintain a comfortable posture. Keep optical surfaces clean and store the finder in a dry place when not in use to preserve performance.